Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
090051goodexcellent71excellent
080055goodexcellent71excellent
070054goodexcellent61excellent
060046goodexcellent81excellent
050053goodexcellent71excellent
040062lightly pollutedexcellent81excellent
030062lightly pollutedexcellent91excellent
020073lightly pollutedexcellent121excellent
010077lightly pollutedexcellent141excellent
000082lightly pollutedexcellent151excellent
230097lightly pollutedexcellent171excellent
220087lightly pollutedexcellent171excellent
210089lightly pollutedexcellent161excellent
200086lightly pollutedexcellent181excellent
190075lightly pollutedexcellent161excellent
180072lightly pollutedexcellent171excellent
1700107moderately pollutedgood211excellent
160092lightly pollutedgood211excellent
150096lightly pollutedgood211excellent
1400103moderately pollutedgood221excellent
130082lightly pollutedgood211excellent
120080lightly pollutedgood211excellent
1100116moderately pollutedexcellent201excellent
1000108moderately pollutedexcellent201excellent